ASN Wikibase Occurrence # 201950
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can
submit corrected information.
Date: | Tuesday 9 February 1999 |
Time: | 16:15 LT |
Type: | Hughes 369D |
Owner/operator: | Agrotors Inc. |
Registration: | N5070J |
MSN: | 121096D |
Year of manufacture: | 1981 |
Total airframe hrs: | 1009 hours |
Engine model: | Allison 250-C20B |
Fatalities: | Fatalities: 0 / Occupants: 3 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Herminie, PA -
United States of America
|
Phase: | Unknown |
Nature: | Unknown |
Departure airport: | Latrobe, PA (KLBE) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The helicopter was positioning next to a powerline tower, in an out of ground effect hover. During the hover, the engine out warning horn sounded, alerting the pilot of a possible power loss. The pilot backed the helicopter away from the tower, lowered the collective, and turned to the left to avoid the tower. Approximately 10-15 feet above the ground, the engine lost additional power, and descended rapidly. Just prior to impact, the pilot applied maximum collective, and the helicopter landed hard. After landing, the engine was shut down by the pilot. The engine was removed and accelerated in a test cell from 70 percent to 95 percent torque. No discrepancies were noted, and power calibrations were computed. The computed power calibrations revealed that the engine was producing 12 percent more than rated power. The fuel control unit was removed from the engine, inspected, and tested. No conditions were found that would have prohibited the unit from operating normally at the time of the incident.
Probable Cause: The partial loss of engine power for undetermined reasons.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NYC99LA055 |
Status: | Investigation completed |
Duration: | 1 year and 6 months |
Download report: | Final report |
|
Sources:
NTSB NYC99LA055
History of this aircraft
Other occurrences involving this aircraft
8 April 2000 |
N5070J |
Haverfield Aviation |
0 |
LEMONT, Illinois |
|
sub |
Location
Revision history:
Date/time | Contributor | Updates |
26-Nov-2017 10:00 |
ASN Update Bot |
Added |
08-Apr-2024 09:52 |
ASN Update Bot |
Updated [Time, Operator, Other fatalities, Departure airport, Source, Narrative, Category, Accident report] |
The Aviation Safety Network is an exclusive service provided by:
CONNECT WITH US:
©2024 Flight Safety Foundation